you drag them to the top menu bar: Back, forward, etc buttons, and then you can use them as short cut icons, click the mug for mac rumors, etc. Some of the people over at spymac are going nuts, one guys working on XML for his, motions big, etc. I stop at the rollover images, or maybe some light motion that doesn't loop.

MacRumors attracts a broad audience
of both consumers and professionals interested in
the latest technologies and products. We also boast an active community focused on
purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms.